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https://issues.apache.org/jira/browse/FLINK-5983?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15900213#comment-15900213
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ASF GitHub Bot commented on FLINK-5983:
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GitHub user fhueske opened a pull request:
https://github.com/apache/flink/pull/3489
[FLINK-5983] [table] Convert FOR into WHILE loops for aggregation functions.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/fhueske/flink tableForToWhile
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/3489.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #3489
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commit ed336b3970acbfb6b71345745945070ec384442d
Author: Fabian Hueske <[email protected]>
Date: 2017-03-07T21:17:54Z
[FLINK-5983] [table] Convert FOR into WHILE loops for aggregation functions.
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> Replace for/foreach/map in aggregates by while loops
> ----------------------------------------------------
>
> Key: FLINK-5983
> URL: https://issues.apache.org/jira/browse/FLINK-5983
> Project: Flink
> Issue Type: Improvement
> Components: Table API & SQL
> Reporter: Timo Walther
> Assignee: Fabian Hueske
>
> Right now there is a mixture of different kinds of loops within aggregate
> functions. Although performance is not the main goal at the moment, we should
> focus on performant execution especially in this runtime functions.
> e.g. {{DataSetTumbleCountWindowAggReduceGroupFunction}}
> We should replace loops, maps etc. by primitive while loops.
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